EP 1430574 B1 20050615 - OPTICAL FIBRE-BASED DEVICES UTILISING THE RAMAN EFFECT
Title (en)
OPTICAL FIBRE-BASED DEVICES UTILISING THE RAMAN EFFECT
Title (de)
FASEROPTISCHE VORRICHTUNGEN UNTER VERWENDUNG DES RAMAN-EFFEKTS
Title (fr)
DISPOSITIFS A FIBRE OPTIQUE UTILISANT L'EFFET RAMAN
Publication
Application
Priority
- GB 0204400 W 20020927
- GB 0123366 A 20010928
- GB 0123474 A 20010928
Abstract (en)
[origin: WO03029851A2] An optical fibre device based on the Raman effect comprises a first optical source to provide light at a first wavelength, and a holey optical fibre which receives the light from the first optical source such that optical gain or loss is provided at a second wavelength by the effect of Raman scattering within the fibre. For optical gain, the second wavelength is longer than the first wavelength, and the device can be operated as an amplifier, or as a laser if optical feedback is provided. For optical loss, the second wavelength is shorter than the first, and the device may be used as an optical modulator. The fibre may be fabricated from pure silica, although other undoped or doped materials may alternatively be used to tailor properties of the fibre such as gain spectrum, bandwidth, power handling capability and mode propagation.
IPC 1-7
IPC 8 full level
G02F 1/365 (2006.01)
CPC (source: EP US)
G02F 1/365 (2013.01 - EP US); G02F 2202/32 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03029851 A2 20030410; WO 03029851 A3 20030508; AT E298142 T1 20050715; AU 2002331970 A1 20030414; DE 60204709 D1 20050721; DE 60204709 T2 20060629; EP 1430574 A2 20040623; EP 1430574 B1 20050615; US 2005147370 A1 20050707; US 7136559 B2 20061114
DOCDB simple family (application)
GB 0204400 W 20020927; AT 02767669 T 20020927; AU 2002331970 A 20020927; DE 60204709 T 20020927; EP 02767669 A 20020927; US 49090705 A 20050203